Paper-making machine



April 8 1924. 1,489,622

' E. J. WILSON PAPER MAK ING MACHINE Filed Dec. 2. 1922 s ,9 Q I///////zPatented Apr. 8, 1924.

mxmn J. WILSON, OF EAST GREENBUSE, NEW YORK, ASSIGNOR TO I. C. CHIU YCK& SONS, OF RENSSELAER, NEW A CQBPQRATION OF NEW YORK.

PAPER-MAKING MACHINE.

Application med December- =2, 1m, Serial No. 804,495.

To all whom it may concern:

Be it known that I, EZEKJEL J. WILsoN, a citizen of the United States,residi East Greenbush, in the county of Rensse aer 5 and State of NewYork, have invented certain new and useful Improvements in Pa er- MakinMachines; an I do hereby dec are the fol owing to be a full, clear, andexact description of the invention, such as will v enable others skilledin the art to which it up ertains to make and use the same.

he invention relates to paper making machines.

In these machines portions of the mois- 16 ture in the web of paperstock formed on the Fourdrinier wire are successively removed by thefelt jacketed couch roll at the delivery end of the'wire and by thepressure rolls and feltsof the series of presses 20 through which theweb passes on its way to the heated calender rolls which epinp lete thedr ing and finishing of thew'eb.

secure t e most efiicient operation of the machine the couch roll andthe pressure rolls of the pressesshould apply as heavy a pressure to thepaper stock as is permissible without crushing or injuring the fibres ofthe stock so that each will remove the maximum amount of moisture andthus rea0 duce the amount which must be subse- .quentl removed by themore ex nsive operatiori of the heated dryer. I l efiicient operation ofthe couch roll and of the pressure rolls also requires that any ressureapplied to a roll shall be applied equall at both ends so that the webof stock wil be subjected to a uniform pressure throughout its width byeach of the rolls. It has been found, however, that with theconstructions heretofore in use there is a wide variation in thepressure applied by a roll under a given adjustment of the means forpressing the roll a ainst the Web and that there is also a widevariation in the pressures applied by the opposite ends of the roll evenwhen the means for forcing the roll against the web is apparentlyadjusted to'secure the same pressure at each end of the roll.

It is the object of the resent invention to provide means bywhicpressure may be uniformly applied throughout the width of the web ofaper stock by any-orall of the rolls app ying pressure thereto so thatthe proper adjustments may be made to secure the most efiicientoperation at. pressure or pressure being applied to the :ficientresults.

predetermined ofthe machine' A. further object of the inventionistoprovide means by which the web during its passage through the machinemaybe in icated or indicated and recorded atipoints -where they may beconveniently observed and inspected.

To-these ends one feature of the invention contemplates the applicationto each end-of one or more of the rolls which press upon :me web. ofstock, of a spring link through which pressure is applied to the roll,and the provision of mechanism operated bythe resultingdcflection ordistortion of'the link to indicat or indicate and record the pressuretransmitted therethrough to the corresponding end of the roll. This"enables the proper adjustments to be made in the means for applyingpressure to the oppositeends of the roll to secure, that pressure whichwill give the most eflicient results and also to secure the samepressureat each'gendof'the roll. The application of thisfe'ature' of theinvention to each of the rolls which apply pressure to the web alsoenables the proper adjustments to be. made to secure that relationbetween the'successive pressing operations which may be found to givethe most ef- "To enable the convenient observation of the pressuresbeing applied at the various ends of the rollsand thus avoid theadditional attention and the probable neglect on the part ,of theoperator, which would and conveniently inspect them to determine whetherthe proper pressures are being ap plied and to determine whatadjustments should be made to correct any indicated variations fromnormal. The superintendent may also conveniently observe whether themachine is being properly run by the operator. In case recordingindicators are utilized the record of the pressures applied by "thevarious rolls serves also as a check on the operator which indicates anyneglect 1,489,622 PATENT OFFICE.

to make the adjustments requisite for the most efiicient operatica ofthe machine and thus reduces the chances of such neglect or itscontinuance for any length of time.

The invention will be readily understood from the accompanying drawingsin which Fig. 1 illustrates diagrammatically the application of thepreferred form of the invention to a F ourdrinier paper machine, Fig. 2is a detailed end elevation of one of the pressure applying rolls, Fig.3 is an elevation looking'toward the left in Fig. 2, and Fig. 4 is adiagrammatic detail of one of the indicatin and recording devices.

In Fig. 1 the *ourdrinier wire upon which the paper stock is formed intoa web is indicated at 2, the lower couch roll about which the wirepasses is indicated at 4 and the upper felt jacketed couch roll whichremoves a part of the moisture and presses the stockinto compact webform is indicated at 6. The continuous web of paper stock S formed onthe wire passes from the couch rolls through a series of preses in eachof which a further portion of the moisture is removed by a pressure roll8 and felt 10. From the last press the partially dried web of stockpasses to the heated calender rolls of the dryer which completes thedrying and finishing of the web. Each of, the pressure applying rolls,including the couch roll 6, is so mounted that it ma be pressed againstthe web passing beneath it, and adjustable means is provided at each endof each roll for pressing that end of the roll against the web. As showneach end of each roll is journaled in a pivoted carrier 12 and is forcedagainst the web by a weight 14 adjustably secured on one of two compoundlevers 16, 1-8, the other one of which is connected with the carrier bya link 20'.

In order that the pressure applied to the end of the roll by the weightand com ound levers may be measured and indicate in a uniformly accurateand reliable manner the link through which the pressure is transmittedto the end of the roll is a spring link connected to operate anindicating mechanism through the distortion or deflection due to suchpressure. As shown the spring link comprises an elliptical spring 22,one end of which is connected by a hook 24: with the roll carrier 12,and the other end of which is connected by an adjustable hook 26 withthe lever 18.. A variation in the pressure transmitted through the link22 will result in a movement of the sides of the link toward or awayfrom each other which is proportional to such variation. This movementis utilized to operate an indicating mechanism which, so far as certainfeatures of the invention are concerned, may be of any suitableconstruction such for instance as a scale and finger mounted on thelink, but which is preferably so constructed and operated that itsindicating devices may be located at any desired point however remotefrom the end of the roll. As shown the means for indicating the pressuretransmitted through the link 22 c'omprises an electric circuit includingtwo s nchronized magnetic fields 28 and 30 wit in which are arranged twosimilar armatures 32 and 34. The field 28 is mounted on a late 36secured to one side of the sprin nk 22, while its armature 32 is mounton the plate to rotate within the field, and its position isdetermined-b a rack 38 secured to the other side of tie link andengaging a pinion on the ivot of the armature. Movement of the sides ofthe link toward or from each other will result in a rotation of thearmature within the magnetic field and the osition of the armaturewithin the field wil depend upon the relation of the two sides of thelink to each other and therefore to the pressure being transmittedthrough the link to the end of the roll. The other magnetic field 30 andarmature 34 are connected with indicating devices which may be arran dat an desired point in the electric circuit an are preferablyconstructed to record as well as indicate the pressure transmittedthrough the link 22 to the end of the roll. As indicateddiagrammatically in Fig. 4 the magnetic field 30 may be mounted in fixedposition while the armature 34 is mounted to rotate within the field andis provided at its axis with a pinion 40 engagin ment 42 secured tothepivot 44 0 an indicating and recording finger 46. The end of the fingermay be arranged to play over a scale calibrated to indicate in poundsthe pressure transmitted through the link 22 and this scale may beformed on a time chart 48 operated by clock mechanism as is usual inrecording indicators. Ilhe coils of the synchronized magnetic fields areso wound and arranged that movement of the armature 32 will beaccompanied by a corres onding movement of the armature 34 anconsequently the position of the arms.- ture 34 and the indicating andrecording finger 46 will depend upon the position of the armature 28 andtherefore upon the pressure being transmitted through the spfling link22 to the end of the pressure ro The indicating recorders may be locatedwherever found most convenient and if desired additional recorders ma beincluded in series in each circuit to in icate, for instance, in thesuperintendents oflice the pressures being applied by the rolls of thevarious machines in-the plant.

While it is preferred to employ subs'tantially the construction andarrangement shown and described it will be understood Ill , that thiscmstmction and 1 the machine, means for app .to the moist web of stockhie not essential to the broader-W turesof the invention and: may bevaried or modified as found desirable or best suited to the conditionsunder which the invention is to be utilized.

What is claimed is:

1. A paper making machine having, in combination a roll for applyingressure to the moist web of stock assing t ugh the machine, means forapp ying an adjustable pressure to each end of the roll including aspring link through which the pressure is applied, and a ressureindicating mechamsm correspon ing to'each link operated by thedistortion of the link.

2. A paper maki machine having, in combination, a roll or applyingpressure to the moist web of stock pasing through the machine, a rollcarrier at each end of the roll, a spring link connected to eachcarrier, means for transmitting an adjustable pressure to the carrierth, h the link, and a pressure indicat' mec anism operated by thedistortion of t e link.

3. A paper making machine having, in

combination, a series of rolls for suoeessively applying of stockpassing t rough the machine, means for applying an adjustable pressureto each end 0 each roll including a prils .link

through which the pressure is appl and a pressure indicating mechanismcorresponding to each link operated by the distortion of the link.

. 4. A paper making machine having, in combination, a roll or applyingpressure passing through the machine, means for app yi able pressure toeach end of t e roll, and mechanism for indicating at a point remotefrom the pressure applying means the pressure apphed to the rollthereby.

5. A paper making machine having, in combination, a roll or applyingprewure to the moist web of stock passing through ying an adjustablepressure to each end of the roll, include ing a spring link throughwhich the pres .ated by the accompanyi pressure to the moist web anadjust- 6. A paper making machine having, in

combination, a series of rolls for successively applying ressure to the.moist web of stock passin t rough the machine, mechanism for ap ying anadjustable pressure to each end 0 each roll including a spnfig linkthrough'which the premre s a two synchronized magnetic fields witharmatures therein corresponding to each link, one field and armaturebeing be relatively moved by distortion of the link,

connectedtO- and indicating devices connected to be operrelativemovement of the other field an armature. f

7. A paper making machinehaving, in combination, a'roll or applyingpressure to the moist web of stock assing through the-machine, means forapp yi an adjustable pressure to each end of t e 'roll, and means forrecording the pressure applied to each end of the roll during theoperation i of the machine. v

. 8. A paper makin machine having, in

combination, a roll or applying presure to the moist web of stock themachine, means for a able pressure to each en 'of the. ro eluding aspring link through which the pressure is applied, and a pnesurerecordmg mechanism cor operated by the distortion 0 the link.

9. A paper makingo combination, a roll r applying pressure to the moistweb of stock ing through I the machine, means for a p yin an adjustablepressure to each en mechanism for recording at a point remote from thepressure appl ing means the pres-' of t e roll, and

sure applied by the re thereby.-

s E ZEKIEL J. WILSON.

respond to each link:

machine having, in'

ng through" ying an m.

